Tolong jawab sekarang ya besok dikumpulin

1. 7/15 × 90 =
630/15 = 42 kancing merah
2. 1/4.000=3,5/t
t=3,5×4.000 =
14.000cm=0,14km=140m
3. 1/100= JP/80 =
JP=80m/100cm =
8000/100= 80cm
4. 1/200=lbr/14 =
200lbr=1400cm =
lbr=1400/200 = 7cm
5. 1/700.000= 17/JS =
JS=700.000×17=
JS=11.900.000cm= 119km